Home / 21,641.60-32,457.70-6,851.72

Finding the Fourth Proportional to 21,641.60, 32,457.70 and 6,851.72

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Solution

The fourth proportional to 21,641.60, 32,457.70 and 6,851.72 is: 10,276.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,641.60 : 32,457.70 = 6,851.72 : x
  2. Step 2: Convert to fraction form
    21,641.60/32,457.70 = 6,851.72/x
  3. Step 3: Cross multiply
    21,641.60x = 32,457.70 × 6,851.72
  4. Step 4: Simplify right side
    21,641.60x = 222,391,072.24
  5. Step 5: Solve for x
    x = 222,391,072.24/21,641.60
  6. Step 6: Final answer
    x = 10,276.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.